1 files changed, 217 insertions, 0 deletions
diff --git a/testing/web-platform/tests/custom-elements/reactions/resources/reactions.js b/testing/web-platform/tests/custom-elements/reactions/resources/reactions.js
new file mode 100644
index 000000000..c260dc4f3
--- /dev/null
+++ b/testing/web-platform/tests/custom-elements/reactions/resources/reactions.js
@@ -0,0 +1,217 @@
+
+let testNumber = 1;
+
+function testNodeConnector(testFunction, name) {
+    let container = document.createElement('div');
+    container.appendChild(document.createElement('div'));
+    document.body.appendChild(container);
+
+    test(function () {
+        var element = define_new_custom_element();
+        var instance = document.createElement(element.name);
+        assert_array_equals(element.takeLog().types(), ['constructed']);
+        testFunction(container, instance);
+        assert_array_equals(element.takeLog().types(), ['connected']);
+    }, name + ' must enqueue a connected reaction');
+
+    test(function () {
+        var element = define_new_custom_element();
+        var instance = document.createElement(element.name);
+        assert_array_equals(element.takeLog().types(), ['constructed']);
+        var newDoc = document.implementation.createHTMLDocument();
+        testFunction(container, instance);
+        assert_array_equals(element.takeLog().types(), ['connected']);
+        testFunction(newDoc.documentElement, instance);
+        assert_array_equals(element.takeLog().types(), ['disconnected', 'adopted', 'connected']);
+    }, name + ' must enqueue a disconnected reaction, an adopted reaction, and a connected reaction when the custom element was in another document');
+
+    container.parentNode.removeChild(container);
+}
+
+function testNodeDisconnector(testFunction, name) {
+    let container = document.createElement('div');
+    container.appendChild(document.createElement('div'));
+    document.body.appendChild(container);
+ 
+    test(function () {
+        var element = define_new_custom_element();
+        var instance = document.createElement(element.name);
+        assert_array_equals(element.takeLog().types(), ['constructed']);
+        container.appendChild(instance);
+        assert_array_equals(element.takeLog().types(), ['connected']);
+        testFunction(instance);
+        assert_array_equals(element.takeLog().types(), ['disconnected']);
+    }, name + ' must enqueue a disconnected reaction');
+
+    container.parentNode.removeChild(container);
+}
+
+function testCloner(testFunction, name) {
+    let container = document.createElement('div');
+    container.appendChild(document.createElement('div'));
+    document.body.appendChild(container);
+
+    test(function () {
+        var element = define_new_custom_element(['id']);
+        var instance = document.createElement(element.name);
+        container.appendChild(instance);
+
+        instance.setAttribute('id', 'foo');
+        assert_array_equals(element.takeLog().types(), ['constructed', 'connected', 'attributeChanged']);
+        var newInstance = testFunction(instance);
+        var logEntries = element.takeLog();
+        assert_array_equals(logEntries.types(), ['constructed', 'attributeChanged']);
+        assert_attribute_log_entry(logEntries.last(), {name: 'id', oldValue: null, newValue: 'foo', namespace: null});
+    }, name + ' must enqueue an attributeChanged reaction when cloning an element with an observed attribute');
+
+    test(function () {
+        var element = define_new_custom_element(['id']);
+        var instance = document.createElement(element.name);
+        container.appendChild(instance);
+
+        instance.setAttribute('lang', 'en');
+        assert_array_equals(element.takeLog().types(), ['constructed', 'connected']);
+        var newInstance = testFunction(instance);
+        assert_array_equals(element.takeLog().types(), ['constructed']);
+    }, name + ' must not enqueue an attributeChanged reaction when cloning an element with an unobserved attribute');
+
+    test(function () {
+        var element = define_new_custom_element(['title', 'class']);
+        var instance = document.createElement(element.name);
+        container.appendChild(instance);
+
+        instance.setAttribute('lang', 'en');
+        instance.className = 'foo';
+        instance.setAttribute('title', 'hello world');
+        assert_array_equals(element.takeLog().types(), ['constructed', 'connected', 'attributeChanged', 'attributeChanged']);
+        var newInstance = testFunction(instance);
+        var logEntries = element.takeLog();
+        assert_array_equals(logEntries.types(), ['constructed', 'attributeChanged', 'attributeChanged']);
+        assert_attribute_log_entry(logEntries[1], {name: 'class', oldValue: null, newValue: 'foo', namespace: null});
+        assert_attribute_log_entry(logEntries[2], {name: 'title', oldValue: null, newValue: 'hello world', namespace: null});
+    }, name + ' must enqueue an attributeChanged reaction when cloning an element only for observed attributes');
+}
+
+function testReflectAttribute(jsAttributeName, contentAttributeName, validValue1, validValue2, name) {
+    test(function () {
+        var element = define_new_custom_element([contentAttributeName]);
+        var instance = document.createElement(element.name);
+        assert_array_equals(element.takeLog().types(), ['constructed']);
+        instance[jsAttributeName] = validValue1;
+        var logEntries = element.takeLog();
+        assert_array_equals(logEntries.types(), ['attributeChanged']);
+        assert_attribute_log_entry(logEntries.last(), {name: contentAttributeName, oldValue: null, newValue: validValue1, namespace: null});
+    }, name + ' must enqueue an attributeChanged reaction when adding ' + contentAttributeName + ' content attribute');
+
+    test(function () {
+        var element = define_new_custom_element([contentAttributeName]);
+        var instance = document.createElement(element.name);
+        instance[jsAttributeName] = validValue1;
+        assert_array_equals(element.takeLog().types(), ['constructed', 'attributeChanged']);
+        instance[jsAttributeName] = validValue2;
+        var logEntries = element.takeLog();
+        assert_array_equals(logEntries.types(), ['attributeChanged']);
+        assert_attribute_log_entry(logEntries.last(), {name: contentAttributeName, oldValue: validValue1, newValue: validValue2, namespace: null});
+    }, name + ' must enqueue an attributeChanged reaction when replacing an existing attribute');
+}
+
+function testAttributeAdder(testFunction, name) {
+    test(function () {
+        var element = define_new_custom_element(['id']);
+        var instance = document.createElement(element.name);
+        assert_array_equals(element.takeLog().types(), ['constructed']);
+        testFunction(instance, 'id', 'foo');
+        var logEntries = element.takeLog();
+        assert_array_equals(logEntries.types(), ['attributeChanged']);
+        assert_attribute_log_entry(logEntries.last(), {name: 'id', oldValue: null, newValue: 'foo', namespace: null});
+    }, name + ' must enqueue an attributeChanged reaction when adding an attribute');
+
+    test(function () {
+        var element = define_new_custom_element(['class']);
+        var instance = document.createElement(element.name);
+        assert_array_equals(element.takeLog().types(), ['constructed']);
+        testFunction(instance, 'data-lang', 'en');
+        assert_array_equals(element.takeLog().types(), []);
+    }, name + ' must not enqueue an attributeChanged reaction when adding an unobserved attribute');
+
+    test(function () {
+        var element = define_new_custom_element(['title']);
+        var instance = document.createElement(element.name);
+        instance.setAttribute('title', 'hello');
+        assert_array_equals(element.takeLog().types(), ['constructed', 'attributeChanged']);
+        testFunction(instance, 'title', 'world');
+        var logEntries = element.takeLog();
+        assert_array_equals(logEntries.types(), ['attributeChanged']);
+        assert_attribute_log_entry(logEntries.last(), {name: 'title', oldValue: 'hello', newValue: 'world', namespace: null});
+    }, name + ' must enqueue an attributeChanged reaction when replacing an existing attribute');
+
+    test(function () {
+        var element = define_new_custom_element([]);
+        var instance = document.createElement(element.name);
+        instance.setAttribute('data-lang', 'zh');
+        assert_array_equals(element.takeLog().types(), ['constructed']);
+        testFunction(instance, 'data-lang', 'en');
+        assert_array_equals(element.takeLog().types(), []);
+    }, name + ' must enqueue an attributeChanged reaction when replacing an existing unobserved attribute');
+}
+
+function testAttributeMutator(testFunction, name) {
+    test(function () {
+        var element = define_new_custom_element(['title']);
+        var instance = document.createElement(element.name);
+        instance.setAttribute('title', 'hello');
+        assert_array_equals(element.takeLog().types(), ['constructed', 'attributeChanged']);
+        testFunction(instance, 'title', 'world');
+        var logEntries = element.takeLog();
+        assert_array_equals(logEntries.types(), ['attributeChanged']);
+        assert_attribute_log_entry(logEntries.last(), {name: 'title', oldValue: 'hello', newValue: 'world', namespace: null});
+    }, name + ' must enqueue an attributeChanged reaction when replacing an existing attribute');
+
+    test(function () {
+        var element = define_new_custom_element(['class']);
+        var instance = document.createElement(element.name);
+        instance.setAttribute('data-lang', 'zh');
+        assert_array_equals(element.takeLog().types(), ['constructed']);
+        testFunction(instance, 'data-lang', 'en');
+        assert_array_equals(element.takeLog().types(), []);
+    }, name + ' must not enqueue an attributeChanged reaction when replacing an existing unobserved attribute');
+}
+
+function testAttributeRemover(testFunction, name) {
+    test(function () {
+        var element = define_new_custom_element(['title']);
+        var instance = document.createElement(element.name);
+        assert_array_equals(element.takeLog().types(), ['constructed']);
+        testFunction(instance, 'title');
+        assert_array_equals(element.takeLog().types(), []);
+    }, name + ' must not enqueue an attributeChanged reaction when removing an attribute that does not exist');
+
+    test(function () {
+        var element = define_new_custom_element([]);
+        var instance = document.createElement(element.name);
+        instance.setAttribute('data-lang', 'hello');
+        assert_array_equals(element.takeLog().types(), ['constructed']);
+        testFunction(instance, 'data-lang');
+        assert_array_equals(element.takeLog().types(), []);
+    }, name + ' must not enqueue an attributeChanged reaction when removing an unobserved attribute');
+
+    test(function () {
+        var element = define_new_custom_element(['title']);
+        var instance = document.createElement(element.name);
+        instance.setAttribute('title', 'hello');
+        assert_array_equals(element.takeLog().types(), ['constructed', 'attributeChanged']);
+        testFunction(instance, 'title');
+        var logEntries = element.takeLog();
+        assert_array_equals(logEntries.types(), ['attributeChanged']);
+        assert_attribute_log_entry(logEntries.last(), {name: 'title', oldValue: 'hello', newValue: null, namespace: null});
+    }, name + ' must enqueue an attributeChanged reaction when removing an existing attribute');
+
+    test(function () {
+        var element = define_new_custom_element([]);
+        var instance = document.createElement(element.name);
+        instance.setAttribute('data-lang', 'ja');
+        assert_array_equals(element.takeLog().types(), ['constructed']);
+        testFunction(instance, 'data-lang');
+        assert_array_equals(element.takeLog().types(), []);
+    }, name + ' must not enqueue an attributeChanged reaction when removing an existing unobserved attribute');
+}